Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull timer updates from Thomas Gleixner:
 "Rather large, but nothing exiting:

   - new range check for settimeofday() to prevent that boot time
     becomes negative.
   - fix for file time rounding
   - a few simplifications of the hrtimer code
   - fix for the proc/timerlist code so the output of clock realtime
     timers is accurate
   - more y2038 work
   - tree wide conversion of clockevent drivers to the new callbacks"

* 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (88 commits)
  hrtimer: Handle failure of tick_init_highres() gracefully
  hrtimer: Unconfuse switch_hrtimer_base() a bit
  hrtimer: Simplify get_target_base() by returning current base
  hrtimer: Drop return code of hrtimer_switch_to_hres()
  time: Introduce timespec64_to_jiffies()/jiffies_to_timespec64()
  time: Introduce current_kernel_time64()
  time: Introduce struct itimerspec64
  time: Add the common weak version of update_persistent_clock()
  time: Always make sure wall_to_monotonic isn't positive
  time: Fix nanosecond file time rounding in timespec_trunc()
  timer_list: Add the base offset so remaining nsecs are accurate for non monotonic timers
  cris/time: Migrate to new 'set-state' interface
  kernel: broadcast-hrtimer: Migrate to new 'set-state' interface
  xtensa/time: Migrate to new 'set-state' interface
  unicore/time: Migrate to new 'set-state' interface
  um/time: Migrate to new 'set-state' interface
  sparc/time: Migrate to new 'set-state' interface
  sh/localtimer: Migrate to new 'set-state' interface
  score/time: Migrate to new 'set-state' interface
  s390/time: Migrate to new 'set-state' interface
  ...

1 files changed, 24 insertions, 21 deletions

diff --git a/drivers/clocksource/tegra20_timer.c b/drivers/clocksource/tegra20_timer.c
index 5a112d72fc2d..6ebda1177e79 100644
--- a/drivers/clocksource/tegra20_timer.c
+++ b/drivers/clocksource/tegra20_timer.c
@@ -72,33 +72,36 @@ static int tegra_timer_set_next_event(unsigned long cycles,
 	return 0;
 }
 
-static void tegra_timer_set_mode(enum clock_event_mode mode,
-				    struct clock_event_device *evt)
+static inline void timer_shutdown(struct clock_event_device *evt)
 {
-	u32 reg;
-
 	timer_writel(0, TIMER3_BASE + TIMER_PTV);
+}
 
-	switch (mode) {
-	case CLOCK_EVT_MODE_PERIODIC:
-		reg = 0xC0000000 | ((1000000/HZ)-1);
-		timer_writel(reg, TIMER3_BASE + TIMER_PTV);
-		break;
-	case CLOCK_EVT_MODE_ONESHOT:
-		break;
-	case CLOCK_EVT_MODE_UNUSED:
-	case CLOCK_EVT_MODE_SHUTDOWN:
-	case CLOCK_EVT_MODE_RESUME:
-		break;
-	}
+static int tegra_timer_shutdown(struct clock_event_device *evt)
+{
+	timer_shutdown(evt);
+	return 0;
+}
+
+static int tegra_timer_set_periodic(struct clock_event_device *evt)
+{
+	u32 reg = 0xC0000000 | ((1000000 / HZ) - 1);
+
+	timer_shutdown(evt);
+	timer_writel(reg, TIMER3_BASE + TIMER_PTV);
+	return 0;
 }
 
 static struct clock_event_device tegra_clockevent = {
-	.name		= "timer0",
-	.rating		= 300,
-	.features	= CLOCK_EVT_FEAT_ONESHOT | CLOCK_EVT_FEAT_PERIODIC,
-	.set_next_event	= tegra_timer_set_next_event,
-	.set_mode	= tegra_timer_set_mode,
+	.name			= "timer0",
+	.rating			= 300,
+	.features		= CLOCK_EVT_FEAT_ONESHOT |
+				  CLOCK_EVT_FEAT_PERIODIC,
+	.set_next_event		= tegra_timer_set_next_event,
+	.set_state_shutdown	= tegra_timer_shutdown,
+	.set_state_periodic	= tegra_timer_set_periodic,
+	.set_state_oneshot	= tegra_timer_shutdown,
+	.tick_resume		= tegra_timer_shutdown,
 };
 
 static u64 notrace tegra_read_sched_clock(void)